ice: Implement iidc operations
authorDave Ertman <david.m.ertman@intel.com>
Thu, 20 May 2021 14:37:50 +0000 (09:37 -0500)
committerTony Nguyen <anthony.l.nguyen@intel.com>
Sat, 29 May 2021 03:11:13 +0000 (20:11 -0700)
Add implementations for supporting iidc operations for device operation
such as allocation of resources and event notifications.

Signed-off-by: Dave Ertman <david.m.ertman@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
13 files changed:
drivers/net/ethernet/intel/ice/ice.h
drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
drivers/net/ethernet/intel/ice/ice_common.c
drivers/net/ethernet/intel/ice/ice_common.h
drivers/net/ethernet/intel/ice/ice_dcb_lib.c
drivers/net/ethernet/intel/ice/ice_hw_autogen.h
drivers/net/ethernet/intel/ice/ice_idc.c
drivers/net/ethernet/intel/ice/ice_idc_int.h [new file with mode: 0644]
drivers/net/ethernet/intel/ice/ice_main.c
drivers/net/ethernet/intel/ice/ice_sched.c
drivers/net/ethernet/intel/ice/ice_switch.c
drivers/net/ethernet/intel/ice/ice_switch.h
drivers/net/ethernet/intel/ice/ice_type.h

index 64e3633..225f8a5 100644 (file)
@@ -55,6 +55,7 @@
 #include "ice_switch.h"
 #include "ice_common.h"
 #include "ice_sched.h"
+#include "ice_idc_int.h"
 #include "ice_virtchnl_pf.h"
 #include "ice_sriov.h"
 #include "ice_fdir.h"
@@ -206,9 +207,9 @@ enum ice_pf_state {
        ICE_NEEDS_RESTART,
        ICE_PREPARED_FOR_RESET, /* set by driver when prepared */
        ICE_RESET_OICR_RECV,            /* set by driver after rcv reset OICR */
-       ICE_PFR_REQ,                    /* set by driver and peers */
-       ICE_CORER_REQ,          /* set by driver and peers */
-       ICE_GLOBR_REQ,          /* set by driver and peers */
+       ICE_PFR_REQ,            /* set by driver */
+       ICE_CORER_REQ,          /* set by driver */
+       ICE_GLOBR_REQ,          /* set by driver */
        ICE_CORER_RECV,         /* set by OICR handler */
        ICE_GLOBR_RECV,         /* set by OICR handler */
        ICE_EMPR_RECV,          /* set by OICR handler */
@@ -335,6 +336,7 @@ struct ice_vsi {
        u16 req_rxq;                     /* User requested Rx queues */
        u16 num_rx_desc;
        u16 num_tx_desc;
+       u16 qset_handle[ICE_MAX_TRAFFIC_CLASS];
        struct ice_tc_cfg tc_cfg;
        struct bpf_prog *xdp_prog;
        struct ice_ring **xdp_rings;     /* XDP ring array */
index cba6933..ff11a61 100644 (file)
@@ -1685,6 +1685,36 @@ struct ice_aqc_dis_txq_item {
        __le16 q_id[];
 } __packed;
 
+/* Add Tx RDMA Queue Set (indirect 0x0C33) */
+struct ice_aqc_add_rdma_qset {
+       u8 num_qset_grps;
+       u8 reserved[7];
+       __le32 addr_high;
+       __le32 addr_low;
+};
+
+/* This is the descriptor of each Qset entry for the Add Tx RDMA Queue Set
+ * command (0x0C33). Only used within struct ice_aqc_add_rdma_qset.
+ */
+struct ice_aqc_add_tx_rdma_qset_entry {
+       __le16 tx_qset_id;
+       u8 rsvd[2];
+       __le32 qset_teid;
+       struct ice_aqc_txsched_elem info;
+};
+
+/* The format of the command buffer for Add Tx RDMA Queue Set(0x0C33)
+ * is an array of the following structs. Please note that the length of
+ * each struct ice_aqc_add_rdma_qset is variable due to the variable
+ * number of queues in each group!
+ */
+struct ice_aqc_add_rdma_qset_data {
+       __le32 parent_teid;
+       __le16 num_qsets;
+       u8 rsvd[2];
+       struct ice_aqc_add_tx_rdma_qset_entry rdma_qsets[];
+};
+
 /* Configure Firmware Logging Command (indirect 0xFF09)
  * Logging Information Read Response (indirect 0xFF10)
  * Note: The 0xFF10 command has no input parameters.
@@ -1881,6 +1911,7 @@ struct ice_aq_desc {
                struct ice_aqc_get_set_rss_key get_set_rss_key;
                struct ice_aqc_add_txqs add_txqs;
                struct ice_aqc_dis_txqs dis_txqs;
+               struct ice_aqc_add_rdma_qset add_rdma_qset;
                struct ice_aqc_add_get_update_free_vsi vsi_cmd;
                struct ice_aqc_add_update_free_vsi_resp add_update_free_vsi_res;
                struct ice_aqc_fw_logging fw_logging;
@@ -2029,6 +2060,7 @@ enum ice_adminq_opc {
        /* Tx queue handling commands/events */
        ice_aqc_opc_add_txqs                            = 0x0C30,
        ice_aqc_opc_dis_txqs                            = 0x0C31,
+       ice_aqc_opc_add_rdma_qset                       = 0x0C33,
 
        /* package commands */
        ice_aqc_opc_download_pkg                        = 0x0C40,
index 6d649e5..b8cc737 100644 (file)
@@ -2,6 +2,7 @@
 /* Copyright (c) 2018, Intel Corporation. */
 
 #include "ice_common.h"
+#include "ice_lib.h"
 #include "ice_sched.h"
 #include "ice_adminq_cmd.h"
 #include "ice_flow.h"
@@ -3650,6 +3651,52 @@ do_aq:
        return status;
 }
 
+/**
+ * ice_aq_add_rdma_qsets
+ * @hw: pointer to the hardware structure
+ * @num_qset_grps: Number of RDMA Qset groups
+ * @qset_list: list of Qset groups to be added
+ * @buf_size: size of buffer for indirect command
+ * @cd: pointer to command details structure or NULL
+ *
+ * Add Tx RDMA Qsets (0x0C33)
+ */
+static int
+ice_aq_add_rdma_qsets(struct ice_hw *hw, u8 num_qset_grps,
+                     struct ice_aqc_add_rdma_qset_data *qset_list,
+                     u16 buf_size, struct ice_sq_cd *cd)
+{
+       struct ice_aqc_add_rdma_qset_data *list;
+       struct ice_aqc_add_rdma_qset *cmd;
+       struct ice_aq_desc desc;
+       u16 i, sum_size = 0;
+
+       cmd = &desc.params.add_rdma_qset;
+
+       ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_rdma_qset);
+
+       if (num_qset_grps > ICE_LAN_TXQ_MAX_QGRPS)
+               return -EINVAL;
+
+       for (i = 0, list = qset_list; i < num_qset_grps; i++) {
+               u16 num_qsets = le16_to_cpu(list->num_qsets);
+
+               sum_size += struct_size(list, rdma_qsets, num_qsets);
+               list = (struct ice_aqc_add_rdma_qset_data *)(list->rdma_qsets +
+                                                            num_qsets);
+       }
+
+       if (buf_size != sum_size)
+               return -EINVAL;
+
+       desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
+
+       cmd->num_qset_grps = num_qset_grps;
+
+       return ice_status_to_errno(ice_aq_send_cmd(hw, &desc, qset_list,
+                                                  buf_size, cd));
+}
+
 /* End of FW Admin Queue command wrappers */
 
 /**
@@ -4147,6 +4194,162 @@ ice_cfg_vsi_lan(struct ice_port_info *pi, u16 vsi_handle, u8 tc_bitmap,
                              ICE_SCHED_NODE_OWNER_LAN);
 }
 
+/**
+ * ice_cfg_vsi_rdma - configure the VSI RDMA queues
+ * @pi: port information structure
+ * @vsi_handle: software VSI handle
+ * @tc_bitmap: TC bitmap
+ * @max_rdmaqs: max RDMA queues array per TC
+ *
+ * This function adds/updates the VSI RDMA queues per TC.
+ */
+int
+ice_cfg_vsi_rdma(struct ice_port_info *pi, u16 vsi_handle, u16 tc_bitmap,
+                u16 *max_rdmaqs)
+{
+       return ice_status_to_errno(ice_cfg_vsi_qs(pi, vsi_handle, tc_bitmap,
+                                                 max_rdmaqs,
+                                                 ICE_SCHED_NODE_OWNER_RDMA));
+}
+
+/**
+ * ice_ena_vsi_rdma_qset
+ * @pi: port information structure
+ * @vsi_handle: software VSI handle
+ * @tc: TC number
+ * @rdma_qset: pointer to RDMA Qset
+ * @num_qsets: number of RDMA Qsets
+ * @qset_teid: pointer to Qset node TEIDs
+ *
+ * This function adds RDMA Qset
+ */
+int
+ice_ena_vsi_rdma_qset(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+                     u16 *rdma_qset, u16 num_qsets, u32 *qset_teid)
+{
+       struct ice_aqc_txsched_elem_data node = { 0 };
+       struct ice_aqc_add_rdma_qset_data *buf;
+       struct ice_sched_node *parent;
+       enum ice_status status;
+       struct ice_hw *hw;
+       u16 i, buf_size;
+       int ret;
+
+       if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY)
+               return -EIO;
+       hw = pi->hw;
+
+       if (!ice_is_vsi_valid(hw, vsi_handle))
+               return -EINVAL;
+
+       buf_size = struct_size(buf, rdma_qsets, num_qsets);
+       buf = kzalloc(buf_size, GFP_KERNEL);
+       if (!buf)
+               return -ENOMEM;
+       mutex_lock(&pi->sched_lock);
+
+       parent = ice_sched_get_free_qparent(pi, vsi_handle, tc,
+                                           ICE_SCHED_NODE_OWNER_RDMA);
+       if (!parent) {
+               ret = -EINVAL;
+               goto rdma_error_exit;
+       }
+       buf->parent_teid = parent->info.node_teid;
+       node.parent_teid = parent->info.node_teid;
+
+       buf->num_qsets = cpu_to_le16(num_qsets);
+       for (i = 0; i < num_qsets; i++) {
+               buf->rdma_qsets[i].tx_qset_id = cpu_to_le16(rdma_qset[i]);
+               buf->rdma_qsets[i].info.valid_sections =
+                       ICE_AQC_ELEM_VALID_GENERIC | ICE_AQC_ELEM_VALID_CIR |
+                       ICE_AQC_ELEM_VALID_EIR;
+               buf->rdma_qsets[i].info.generic = 0;
+               buf->rdma_qsets[i].info.cir_bw.bw_profile_idx =
+                       cpu_to_le16(ICE_SCHED_DFLT_RL_PROF_ID);
+               buf->rdma_qsets[i].info.cir_bw.bw_alloc =
+                       cpu_to_le16(ICE_SCHED_DFLT_BW_WT);
+               buf->rdma_qsets[i].info.eir_bw.bw_profile_idx =
+                       cpu_to_le16(ICE_SCHED_DFLT_RL_PROF_ID);
+               buf->rdma_qsets[i].info.eir_bw.bw_alloc =
+                       cpu_to_le16(ICE_SCHED_DFLT_BW_WT);
+       }
+       ret = ice_aq_add_rdma_qsets(hw, 1, buf, buf_size, NULL);
+       if (ret) {
+               ice_debug(hw, ICE_DBG_RDMA, "add RDMA qset failed\n");
+               goto rdma_error_exit;
+       }
+       node.data.elem_type = ICE_AQC_ELEM_TYPE_LEAF;
+       for (i = 0; i < num_qsets; i++) {
+               node.node_teid = buf->rdma_qsets[i].qset_teid;
+               status = ice_sched_add_node(pi, hw->num_tx_sched_layers - 1,
+                                           &node);
+               if (status) {
+                       ret = ice_status_to_errno(status);
+                       break;
+               }
+               qset_teid[i] = le32_to_cpu(node.node_teid);
+       }
+rdma_error_exit:
+       mutex_unlock(&pi->sched_lock);
+       kfree(buf);
+       return ret;
+}
+
+/**
+ * ice_dis_vsi_rdma_qset - free RDMA resources
+ * @pi: port_info struct
+ * @count: number of RDMA Qsets to free
+ * @qset_teid: TEID of Qset node
+ * @q_id: list of queue IDs being disabled
+ */
+int
+ice_dis_vsi_rdma_qset(struct ice_port_info *pi, u16 count, u32 *qset_teid,
+                     u16 *q_id)
+{
+       struct ice_aqc_dis_txq_item *qg_list;
+       enum ice_status status = 0;
+       struct ice_hw *hw;
+       u16 qg_size;
+       int i;
+
+       if (!pi || pi->port_state != ICE_SCHED_PORT_STATE_READY)
+               return -EIO;
+
+       hw = pi->hw;
+
+       qg_size = struct_size(qg_list, q_id, 1);
+       qg_list = kzalloc(qg_size, GFP_KERNEL);
+       if (!qg_list)
+               return -ENOMEM;
+
+       mutex_lock(&pi->sched_lock);
+
+       for (i = 0; i < count; i++) {
+               struct ice_sched_node *node;
+
+               node = ice_sched_find_node_by_teid(pi->root, qset_teid[i]);
+               if (!node)
+                       continue;
+
+               qg_list->parent_teid = node->info.parent_teid;
+               qg_list->num_qs = 1;
+               qg_list->q_id[0] =
+                       cpu_to_le16(q_id[i] |
+                                   ICE_AQC_Q_DIS_BUF_ELEM_TYPE_RDMA_QSET);
+
+               status = ice_aq_dis_lan_txq(hw, 1, qg_list, qg_size,
+                                           ICE_NO_RESET, 0, NULL);
+               if (status)
+                       break;
+
+               ice_free_sched_node(pi, node);
+       }
+
+       mutex_unlock(&pi->sched_lock);
+       kfree(qg_list);
+       return ice_status_to_errno(status);
+}
+
 /**
  * ice_replay_pre_init - replay pre initialization
  * @hw: pointer to the HW struct
index 7a9d2df..0fdda59 100644 (file)
@@ -147,6 +147,15 @@ ice_aq_sff_eeprom(struct ice_hw *hw, u16 lport, u8 bus_addr,
                  u16 mem_addr, u8 page, u8 set_page, u8 *data, u8 length,
                  bool write, struct ice_sq_cd *cd);
 
+int
+ice_cfg_vsi_rdma(struct ice_port_info *pi, u16 vsi_handle, u16 tc_bitmap,
+                u16 *max_rdmaqs);
+int
+ice_ena_vsi_rdma_qset(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
+                     u16 *rdma_qset, u16 num_qsets, u32 *qset_teid);
+int
+ice_dis_vsi_rdma_qset(struct ice_port_info *pi, u16 count, u32 *qset_teid,
+                     u16 *q_id);
 enum ice_status
 ice_dis_vsi_txq(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u8 num_queues,
                u16 *q_handle, u16 *q_ids, u32 *q_teids,
index df02cff..857dc62 100644 (file)
@@ -275,6 +275,7 @@ int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked)
        struct ice_dcbx_cfg *old_cfg, *curr_cfg;
        struct device *dev = ice_pf_to_dev(pf);
        int ret = ICE_DCB_NO_HW_CHG;
+       struct iidc_event *event;
        struct ice_vsi *pf_vsi;
 
        curr_cfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
@@ -313,6 +314,15 @@ int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked)
                goto free_cfg;
        }
 
+       /* Notify AUX drivers about impending change to TCs */
+       event = kzalloc(sizeof(*event), GFP_KERNEL);
+       if (!event)
+               return -ENOMEM;
+
+       set_bit(IIDC_EVENT_BEFORE_TC_CHANGE, event->type);
+       ice_send_event_to_aux(pf, event);
+       kfree(event);
+
        /* avoid race conditions by holding the lock while disabling and
         * re-enabling the VSI
         */
@@ -640,6 +650,7 @@ static int ice_dcb_noncontig_cfg(struct ice_pf *pf)
 void ice_pf_dcb_recfg(struct ice_pf *pf)
 {
        struct ice_dcbx_cfg *dcbcfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
+       struct iidc_event *event;
        u8 tc_map = 0;
        int v, ret;
 
@@ -675,6 +686,14 @@ void ice_pf_dcb_recfg(struct ice_pf *pf)
                if (vsi->type == ICE_VSI_PF)
                        ice_dcbnl_set_all(vsi);
        }
+       /* Notify the AUX drivers that TC change is finished */
+       event = kzalloc(sizeof(*event), GFP_KERNEL);
+       if (!event)
+               return;
+
+       set_bit(IIDC_EVENT_AFTER_TC_CHANGE, event->type);
+       ice_send_event_to_aux(pf, event);
+       kfree(event);
 }
 
 /**
index de38a0f..65b18b3 100644 (file)
 #define VPGEN_VFRSTAT_VFRD_M                   BIT(0)
 #define VPGEN_VFRTRIG(_VF)                     (0x00090000 + ((_VF) * 4))
 #define VPGEN_VFRTRIG_VFSWR_M                  BIT(0)
-#define PFHMC_ERRORDATA                                0x00520500
-#define PFHMC_ERRORINFO                                0x00520400
 #define GLINT_CTL                              0x0016CC54
 #define GLINT_CTL_DIS_AUTOMASK_M               BIT(0)
 #define GLINT_CTL_ITR_GRAN_200_S               16
 #define PFINT_OICR_GRST_M                      BIT(20)
 #define PFINT_OICR_PCI_EXCEPTION_M             BIT(21)
 #define PFINT_OICR_HMC_ERR_M                   BIT(26)
+#define PFINT_OICR_PE_PUSH_M                   BIT(27)
 #define PFINT_OICR_PE_CRITERR_M                        BIT(28)
 #define PFINT_OICR_VFLR_M                      BIT(29)
 #define PFINT_OICR_SWINT_M                     BIT(31)
index c419c9c..adc9015 100644 (file)
@@ -6,6 +6,230 @@
 #include "ice_lib.h"
 #include "ice_dcb_lib.h"
 
+/**
+ * ice_get_auxiliary_drv - retrieve iidc_auxiliary_drv struct
+ * @pf: pointer to PF struct
+ *
+ * This function has to be called with a device_lock on the
+ * pf->adev.dev to avoid race conditions.
+ */
+static struct iidc_auxiliary_drv *ice_get_auxiliary_drv(struct ice_pf *pf)
+{
+       struct auxiliary_device *adev;
+
+       adev = pf->adev;
+       if (!adev || !adev->dev.driver)
+               return NULL;
+
+       return container_of(adev->dev.driver, struct iidc_auxiliary_drv,
+                           adrv.driver);
+}
+
+/**
+ * ice_send_event_to_aux - send event to RDMA AUX driver
+ * @pf: pointer to PF struct
+ * @event: event struct
+ */
+void ice_send_event_to_aux(struct ice_pf *pf, struct iidc_event *event)
+{
+       struct iidc_auxiliary_drv *iadrv;
+
+       if (!pf->adev)
+               return;
+
+       device_lock(&pf->adev->dev);
+       iadrv = ice_get_auxiliary_drv(pf);
+       if (iadrv && iadrv->event_handler)
+               iadrv->event_handler(pf, event);
+       device_unlock(&pf->adev->dev);
+}
+
+/**
+ * ice_find_vsi - Find the VSI from VSI ID
+ * @pf: The PF pointer to search in
+ * @vsi_num: The VSI ID to search for
+ */
+static struct ice_vsi *ice_find_vsi(struct ice_pf *pf, u16 vsi_num)
+{
+       int i;
+
+       ice_for_each_vsi(pf, i)
+               if (pf->vsi[i] && pf->vsi[i]->vsi_num == vsi_num)
+                       return  pf->vsi[i];
+       return NULL;
+}
+
+/**
+ * ice_add_rdma_qset - Add Leaf Node for RDMA Qset
+ * @pf: PF struct
+ * @qset: Resource to be allocated
+ */
+int ice_add_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset)
+{
+       u16 max_rdmaqs[ICE_MAX_TRAFFIC_CLASS];
+       struct ice_vsi *vsi;
+       struct device *dev;
+       u32 qset_teid;
+       u16 qs_handle;
+       int status;
+       int i;
+
+       if (WARN_ON(!pf || !qset))
+               return -EINVAL;
+
+       dev = ice_pf_to_dev(pf);
+
+       if (!test_bit(ICE_FLAG_RDMA_ENA, pf->flags))
+               return -EINVAL;
+
+       vsi = ice_get_main_vsi(pf);
+       if (!vsi) {
+               dev_err(dev, "RDMA QSet invalid VSI\n");
+               return -EINVAL;
+       }
+
+       ice_for_each_traffic_class(i)
+               max_rdmaqs[i] = 0;
+
+       max_rdmaqs[qset->tc]++;
+       qs_handle = qset->qs_handle;
+
+       status = ice_cfg_vsi_rdma(vsi->port_info, vsi->idx, vsi->tc_cfg.ena_tc,
+                                 max_rdmaqs);
+       if (status) {
+               dev_err(dev, "Failed VSI RDMA Qset config\n");
+               return status;
+       }
+
+       status = ice_ena_vsi_rdma_qset(vsi->port_info, vsi->idx, qset->tc,
+                                      &qs_handle, 1, &qset_teid);
+       if (status) {
+               dev_err(dev, "Failed VSI RDMA Qset enable\n");
+               return status;
+       }
+       vsi->qset_handle[qset->tc] = qset->qs_handle;
+       qset->teid = qset_teid;
+
+       return 0;
+}
+EXPORT_SYMBOL_GPL(ice_add_rdma_qset);
+
+/**
+ * ice_del_rdma_qset - Delete leaf node for RDMA Qset
+ * @pf: PF struct
+ * @qset: Resource to be freed
+ */
+int ice_del_rdma_qset(struct ice_pf *pf, struct iidc_rdma_qset_params *qset)
+{
+       struct ice_vsi *vsi;
+       u32 teid;
+       u16 q_id;
+
+       if (WARN_ON(!pf || !qset))
+               return -EINVAL;
+
+       vsi = ice_find_vsi(pf, qset->vport_id);
+       if (!vsi) {
+               dev_err(ice_pf_to_dev(pf), "RDMA Invalid VSI\n");
+               return -EINVAL;
+       }
+
+       q_id = qset->qs_handle;
+       teid = qset->teid;
+
+       vsi->qset_handle[qset->tc] = 0;
+
+       return ice_dis_vsi_rdma_qset(vsi->port_info, 1, &teid, &q_id);
+}
+EXPORT_SYMBOL_GPL(ice_del_rdma_qset);
+
+/**
+ * ice_rdma_request_reset - accept request from RDMA to perform a reset
+ * @pf: struct for PF
+ * @reset_type: type of reset
+ */
+int ice_rdma_request_reset(struct ice_pf *pf, enum iidc_reset_type reset_type)
+{
+       enum ice_reset_req reset;
+
+       if (WARN_ON(!pf))
+               return -EINVAL;
+
+       switch (reset_type) {
+       case IIDC_PFR:
+               reset = ICE_RESET_PFR;
+               break;
+       case IIDC_CORER:
+               reset = ICE_RESET_CORER;
+               break;
+       case IIDC_GLOBR:
+               reset = ICE_RESET_GLOBR;
+               break;
+       default:
+               dev_err(ice_pf_to_dev(pf), "incorrect reset request\n");
+               return -EINVAL;
+       }
+
+       return ice_schedule_reset(pf, reset);
+}
+EXPORT_SYMBOL_GPL(ice_rdma_request_reset);
+
+/**
+ * ice_rdma_update_vsi_filter - update main VSI filters for RDMA
+ * @pf: pointer to struct for PF
+ * @vsi_id: VSI HW idx to update filter on
+ * @enable: bool whether to enable or disable filters
+ */
+int ice_rdma_update_vsi_filter(struct ice_pf *pf, u16 vsi_id, bool enable)
+{
+       struct ice_vsi *vsi;
+       int status;
+
+       if (WARN_ON(!pf))
+               return -EINVAL;
+
+       vsi = ice_find_vsi(pf, vsi_id);
+       if (!vsi)
+               return -EINVAL;
+
+       status = ice_cfg_rdma_fltr(&pf->hw, vsi->idx, enable);
+       if (status) {
+               dev_err(ice_pf_to_dev(pf), "Failed to  %sable RDMA filtering\n",
+                       enable ? "en" : "dis");
+       } else {
+               if (enable)
+                       vsi->info.q_opt_flags |= ICE_AQ_VSI_Q_OPT_PE_FLTR_EN;
+               else
+                       vsi->info.q_opt_flags &= ~ICE_AQ_VSI_Q_OPT_PE_FLTR_EN;
+       }
+
+       return status;
+}
+EXPORT_SYMBOL_GPL(ice_rdma_update_vsi_filter);
+
+/**
+ * ice_get_qos_params - parse QoS params for RDMA consumption
+ * @pf: pointer to PF struct
+ * @qos: set of QoS values
+ */
+void ice_get_qos_params(struct ice_pf *pf, struct iidc_qos_params *qos)
+{
+       struct ice_dcbx_cfg *dcbx_cfg;
+       unsigned int i;
+       u32 up2tc;
+
+       dcbx_cfg = &pf->hw.port_info->qos_cfg.local_dcbx_cfg;
+       up2tc = rd32(&pf->hw, PRTDCB_TUP2TC);
+
+       qos->num_tc = ice_dcb_get_num_tc(dcbx_cfg);
+       for (i = 0; i < IIDC_MAX_USER_PRIORITY; i++)
+               qos->up2tc[i] = (up2tc >> (i * 3)) & 0x7;
+
+       for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++)
+               qos->tc_info[i].rel_bw = dcbx_cfg->etscfg.tcbwtable[i];
+}
+EXPORT_SYMBOL_GPL(ice_get_qos_params);
+
 /**
  * ice_reserve_rdma_qvector - Reserve vector resources for RDMA driver
  * @pf: board private structure to initialize
diff --git a/drivers/net/ethernet/intel/ice/ice_idc_int.h b/drivers/net/ethernet/intel/ice/ice_idc_int.h
new file mode 100644 (file)
index 0000000..b7796b8
--- /dev/null
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2021, Intel Corporation. */
+
+#ifndef _ICE_IDC_INT_H_
+#define _ICE_IDC_INT_H_
+
+#include <linux/net/intel/iidc.h>
+#include "ice.h"
+
+struct ice_pf;
+
+void ice_send_event_to_aux(struct ice_pf *pf, struct iidc_event *event);
+
+#endif /* !_ICE_IDC_INT_H_ */
index e307317..9d4570b 100644 (file)
@@ -2610,6 +2610,7 @@ static void ice_ena_misc_vector(struct ice_pf *pf)
               PFINT_OICR_PCI_EXCEPTION_M |
               PFINT_OICR_VFLR_M |
               PFINT_OICR_HMC_ERR_M |
+              PFINT_OICR_PE_PUSH_M |
               PFINT_OICR_PE_CRITERR_M);
 
        wr32(hw, PFINT_OICR_ENA, val);
@@ -2680,8 +2681,6 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)
 
                /* If a reset cycle isn't already in progress, we set a bit in
                 * pf->state so that the service task can start a reset/rebuild.
-                * We also make note of which reset happened so that peer
-                * devices/drivers can be informed.
                 */
                if (!test_and_set_bit(ICE_RESET_OICR_RECV, pf->state)) {
                        if (reset == ICE_RESET_CORER)
@@ -2708,11 +2707,19 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)
                }
        }
 
-       if (oicr & PFINT_OICR_HMC_ERR_M) {
-               ena_mask &= ~PFINT_OICR_HMC_ERR_M;
-               dev_dbg(dev, "HMC Error interrupt - info 0x%x, data 0x%x\n",
-                       rd32(hw, PFHMC_ERRORINFO),
-                       rd32(hw, PFHMC_ERRORDATA));
+#define ICE_AUX_CRIT_ERR (PFINT_OICR_PE_CRITERR_M | PFINT_OICR_HMC_ERR_M | PFINT_OICR_PE_PUSH_M)
+       if (oicr & ICE_AUX_CRIT_ERR) {
+               struct iidc_event *event;
+
+               ena_mask &= ~ICE_AUX_CRIT_ERR;
+               event = kzalloc(sizeof(*event), GFP_KERNEL);
+               if (event) {
+                       set_bit(IIDC_EVENT_CRIT_ERR, event->type);
+                       /* report the entire OICR value to AUX driver */
+                       event->reg = oicr;
+                       ice_send_event_to_aux(pf, event);
+                       kfree(event);
+               }
        }
 
        /* Report any remaining unexpected interrupts */
@@ -2722,8 +2729,7 @@ static irqreturn_t ice_misc_intr(int __always_unused irq, void *data)
                /* If a critical error is pending there is no choice but to
                 * reset the device.
                 */
-               if (oicr & (PFINT_OICR_PE_CRITERR_M |
-                           PFINT_OICR_PCI_EXCEPTION_M |
+               if (oicr & (PFINT_OICR_PCI_EXCEPTION_M |
                            PFINT_OICR_ECC_ERR_M)) {
                        set_bit(ICE_PFR_REQ, pf->state);
                        ice_service_task_schedule(pf);
@@ -6318,7 +6324,9 @@ static int ice_change_mtu(struct net_device *netdev, int new_mtu)
        struct ice_netdev_priv *np = netdev_priv(netdev);
        struct ice_vsi *vsi = np->vsi;
        struct ice_pf *pf = vsi->back;
+       struct iidc_event *event;
        u8 count = 0;
+       int err = 0;
 
        if (new_mtu == (int)netdev->mtu) {
                netdev_warn(netdev, "MTU is already %u\n", netdev->mtu);
@@ -6351,27 +6359,38 @@ static int ice_change_mtu(struct net_device *netdev, int new_mtu)
                return -EBUSY;
        }
 
+       event = kzalloc(sizeof(*event), GFP_KERNEL);
+       if (!event)
+               return -ENOMEM;
+
+       set_bit(IIDC_EVENT_BEFORE_MTU_CHANGE, event->type);
+       ice_send_event_to_aux(pf, event);
+       clear_bit(IIDC_EVENT_BEFORE_MTU_CHANGE, event->type);
+
        netdev->mtu = (unsigned int)new_mtu;
 
        /* if VSI is up, bring it down and then back up */
        if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) {
-               int err;
-
                err = ice_down(vsi);
                if (err) {
                        netdev_err(netdev, "change MTU if_down err %d\n", err);
-                       return err;
+                       goto event_after;
                }
 
                err = ice_up(vsi);
                if (err) {
                        netdev_err(netdev, "change MTU if_up err %d\n", err);
-                       return err;
+                       goto event_after;
                }
        }
 
        netdev_dbg(netdev, "changed MTU to %d\n", new_mtu);
-       return 0;
+event_after:
+       set_bit(IIDC_EVENT_AFTER_MTU_CHANGE, event->type);
+       ice_send_event_to_aux(pf, event);
+       kfree(event);
+
+       return err;
 }
 
 /**
index 2f09763..a17e24e 100644 (file)
@@ -595,6 +595,50 @@ ice_alloc_lan_q_ctx(struct ice_hw *hw, u16 vsi_handle, u8 tc, u16 new_numqs)
        return 0;
 }
 
+/**
+ * ice_alloc_rdma_q_ctx - allocate RDMA queue contexts for the given VSI and TC
+ * @hw: pointer to the HW struct
+ * @vsi_handle: VSI handle
+ * @tc: TC number
+ * @new_numqs: number of queues
+ */
+static enum ice_status
+ice_alloc_rdma_q_ctx(struct ice_hw *hw, u16 vsi_handle, u8 tc, u16 new_numqs)
+{
+       struct ice_vsi_ctx *vsi_ctx;
+       struct ice_q_ctx *q_ctx;
+
+       vsi_ctx = ice_get_vsi_ctx(hw, vsi_handle);
+       if (!vsi_ctx)
+               return ICE_ERR_PARAM;
+       /* allocate RDMA queue contexts */
+       if (!vsi_ctx->rdma_q_ctx[tc]) {
+               vsi_ctx->rdma_q_ctx[tc] = devm_kcalloc(ice_hw_to_dev(hw),
+                                                      new_numqs,
+                                                      sizeof(*q_ctx),
+                                                      GFP_KERNEL);
+               if (!vsi_ctx->rdma_q_ctx[tc])
+                       return ICE_ERR_NO_MEMORY;
+               vsi_ctx->num_rdma_q_entries[tc] = new_numqs;
+               return 0;
+       }
+       /* num queues are increased, update the queue contexts */
+       if (new_numqs > vsi_ctx->num_rdma_q_entries[tc]) {
+               u16 prev_num = vsi_ctx->num_rdma_q_entries[tc];
+
+               q_ctx = devm_kcalloc(ice_hw_to_dev(hw), new_numqs,
+                                    sizeof(*q_ctx), GFP_KERNEL);
+               if (!q_ctx)
+                       return ICE_ERR_NO_MEMORY;
+               memcpy(q_ctx, vsi_ctx->rdma_q_ctx[tc],
+                      prev_num * sizeof(*q_ctx));
+               devm_kfree(ice_hw_to_dev(hw), vsi_ctx->rdma_q_ctx[tc]);
+               vsi_ctx->rdma_q_ctx[tc] = q_ctx;
+               vsi_ctx->num_rdma_q_entries[tc] = new_numqs;
+       }
+       return 0;
+}
+
 /**
  * ice_aq_rl_profile - performs a rate limiting task
  * @hw: pointer to the HW struct
@@ -1774,13 +1818,22 @@ ice_sched_update_vsi_child_nodes(struct ice_port_info *pi, u16 vsi_handle,
        if (!vsi_ctx)
                return ICE_ERR_PARAM;
 
-       prev_numqs = vsi_ctx->sched.max_lanq[tc];
+       if (owner == ICE_SCHED_NODE_OWNER_LAN)
+               prev_numqs = vsi_ctx->sched.max_lanq[tc];
+       else
+               prev_numqs = vsi_ctx->sched.max_rdmaq[tc];
        /* num queues are not changed or less than the previous number */
        if (new_numqs <= prev_numqs)
                return status;
-       status = ice_alloc_lan_q_ctx(hw, vsi_handle, tc, new_numqs);
-       if (status)
-               return status;
+       if (owner == ICE_SCHED_NODE_OWNER_LAN) {
+               status = ice_alloc_lan_q_ctx(hw, vsi_handle, tc, new_numqs);
+               if (status)
+                       return status;
+       } else {
+               status = ice_alloc_rdma_q_ctx(hw, vsi_handle, tc, new_numqs);
+               if (status)
+                       return status;
+       }
 
        if (new_numqs)
                ice_sched_calc_vsi_child_nodes(hw, new_numqs, new_num_nodes);
@@ -1795,7 +1848,10 @@ ice_sched_update_vsi_child_nodes(struct ice_port_info *pi, u16 vsi_handle,
                                               new_num_nodes, owner);
        if (status)
                return status;
-       vsi_ctx->sched.max_lanq[tc] = new_numqs;
+       if (owner == ICE_SCHED_NODE_OWNER_LAN)
+               vsi_ctx->sched.max_lanq[tc] = new_numqs;
+       else
+               vsi_ctx->sched.max_rdmaq[tc] = new_numqs;
 
        return 0;
 }
@@ -1861,6 +1917,7 @@ ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u16 maxqs,
                 * recreate the child nodes all the time in these cases.
                 */
                vsi_ctx->sched.max_lanq[tc] = 0;
+               vsi_ctx->sched.max_rdmaq[tc] = 0;
        }
 
        /* update the VSI child nodes */
@@ -1990,6 +2047,8 @@ ice_sched_rm_vsi_cfg(struct ice_port_info *pi, u16 vsi_handle, u8 owner)
                }
                if (owner == ICE_SCHED_NODE_OWNER_LAN)
                        vsi_ctx->sched.max_lanq[i] = 0;
+               else
+                       vsi_ctx->sched.max_rdmaq[i] = 0;
        }
        status = 0;
 
index 357d307..3b6c142 100644 (file)
@@ -1,6 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /* Copyright (c) 2018, Intel Corporation. */
 
+#include "ice_lib.h"
 #include "ice_switch.h"
 
 #define ICE_ETH_DA_OFFSET              0
@@ -302,6 +303,10 @@ static void ice_clear_vsi_q_ctx(struct ice_hw *hw, u16 vsi_handle)
                        devm_kfree(ice_hw_to_dev(hw), vsi->lan_q_ctx[i]);
                        vsi->lan_q_ctx[i] = NULL;
                }
+               if (vsi->rdma_q_ctx[i]) {
+                       devm_kfree(ice_hw_to_dev(hw), vsi->rdma_q_ctx[i]);
+                       vsi->rdma_q_ctx[i] = NULL;
+               }
        }
 }
 
@@ -422,6 +427,29 @@ ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
        return ice_aq_update_vsi(hw, vsi_ctx, cd);
 }
 
+/**
+ * ice_cfg_rdma_fltr - enable/disable RDMA filtering on VSI
+ * @hw: pointer to HW struct
+ * @vsi_handle: VSI SW index
+ * @enable: boolean for enable/disable
+ */
+int
+ice_cfg_rdma_fltr(struct ice_hw *hw, u16 vsi_handle, bool enable)
+{
+       struct ice_vsi_ctx *ctx;
+
+       ctx = ice_get_vsi_ctx(hw, vsi_handle);
+       if (!ctx)
+               return -EIO;
+
+       if (enable)
+               ctx->info.q_opt_flags |= ICE_AQ_VSI_Q_OPT_PE_FLTR_EN;
+       else
+               ctx->info.q_opt_flags &= ~ICE_AQ_VSI_Q_OPT_PE_FLTR_EN;
+
+       return ice_status_to_errno(ice_update_vsi(hw, vsi_handle, ctx, NULL));
+}
+
 /**
  * ice_aq_alloc_free_vsi_list
  * @hw: pointer to the HW struct
index 8b4f9d3..6bb7358 100644 (file)
@@ -26,6 +26,8 @@ struct ice_vsi_ctx {
        u8 vf_num;
        u16 num_lan_q_entries[ICE_MAX_TRAFFIC_CLASS];
        struct ice_q_ctx *lan_q_ctx[ICE_MAX_TRAFFIC_CLASS];
+       u16 num_rdma_q_entries[ICE_MAX_TRAFFIC_CLASS];
+       struct ice_q_ctx *rdma_q_ctx[ICE_MAX_TRAFFIC_CLASS];
 };
 
 enum ice_sw_fwd_act_type {
@@ -223,6 +225,8 @@ enum ice_status
 ice_add_eth_mac(struct ice_hw *hw, struct list_head *em_list);
 enum ice_status
 ice_remove_eth_mac(struct ice_hw *hw, struct list_head *em_list);
+int
+ice_cfg_rdma_fltr(struct ice_hw *hw, u16 vsi_handle, bool enable);
 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle);
 enum ice_status
 ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
index b86ae79..c580b87 100644 (file)
@@ -45,6 +45,7 @@ static inline u32 ice_round_to_num(u32 N, u32 R)
 #define ICE_DBG_FLOW           BIT_ULL(9)
 #define ICE_DBG_SW             BIT_ULL(13)
 #define ICE_DBG_SCHED          BIT_ULL(14)
+#define ICE_DBG_RDMA           BIT_ULL(15)
 #define ICE_DBG_PKG            BIT_ULL(16)
 #define ICE_DBG_RES            BIT_ULL(17)
 #define ICE_DBG_AQ_MSG         BIT_ULL(24)
@@ -441,6 +442,7 @@ struct ice_sched_node {
        u8 tc_num;
        u8 owner;
 #define ICE_SCHED_NODE_OWNER_LAN       0
+#define ICE_SCHED_NODE_OWNER_RDMA      2
 };
 
 /* Access Macros for Tx Sched Elements data */
@@ -512,6 +514,7 @@ struct ice_sched_vsi_info {
        struct ice_sched_node *ag_node[ICE_MAX_TRAFFIC_CLASS];
        struct list_head list_entry;
        u16 max_lanq[ICE_MAX_TRAFFIC_CLASS];
+       u16 max_rdmaq[ICE_MAX_TRAFFIC_CLASS];
 };
 
 /* driver defines the policy */